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Book of Proof
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The Continuum and Other Types of Serial Order
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The Game of Logic
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A Gentle Introduction to the Art of Mathematics
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Hack, Hack, Who's There? A Gentle Introduction to Model Theory
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Handbook of Modal Logic
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An Introduction to Good Old Fashioned Model Theory
by Harold Simmons, 2004, 180 pages, 660KB, PDF

Introduction to Logic
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Introduction to Mathematical Logic
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An Introduction to Mathematical Logic
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Introduction to Mathematical Logic: A problem solving course
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Introduction to Proof Theory
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An Introduction to Set Theory
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Lectures on Linear Logic
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Logic and Proof
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Logic for Computer Science
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Logic for Computer Science
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Logic For Everyone
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Logics of Time and Computation
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A Manual of Intensional Logic
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Mathematical Logic
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Metalogic
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Modal Logic of Strict Necessity and Possibility
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Model-Theoretic Logics
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Model Theory
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Model Theory, Algebra and Geometry
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Natural Topology
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Notes on the Science of Logic
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Notes on Set Theory, Part 2
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Practical Foundations of Mathematics
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Predicative Arithmetic
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The Principles Of Mathematics
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A Problem Course in Mathematical Logic
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Prolog Experiments in Discrete Mathematics, Logic, and Computability
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